Alex

<?php

	class user_powermailhelp {


		// Function preflight() will be used from typoscript
		function preflight($content='', $conf=array()) {
			#t3lib_div::debug($conf);
			$value = $GLOBALS['TSFE']->fe_user->sesData['powermail_'.$conf['userFunc.']['formuid']][$conf['userFunc.']['field']];
			return $this->getDate($value);
		}


		// Main getDate() changes a date in any format to an unix timestamp
		function getDate($string, $default = 'now', $timestamp = 1) {
			$error = 0; // no error at the beginning
			$string = str_replace(array('-', '_', ':', '+', ','), '.', $string); // change 23-12-2009 -> 23.12.2009
			if (method_exists('t3lib_div', 'trimExplode')) $dateParts = t3lib_div::trimExplode('.', $string, 1); else $dateParts = explode('.', $string); // split at .

			if (count($dateParts) === 3) { // only if there are three parts
				if (strlen($dateParts[0]) <= 2 && strlen($dateParts[1]) <= 2 && strlen($dateParts[2]) <= 2) { // xx.xx.xx
					$string = strtotime($dateParts[2].'-'.$dateParts[1].'-'.$dateParts[0]); // change to timestamp
				}
				elseif (strlen($dateParts[0]) == 4 && strlen($dateParts[1]) <= 2 && strlen($dateParts[2]) <= 2) { // xxxx.xx.xx
					$string = strtotime($dateParts[0].'-'.$dateParts[1].'-'.$dateParts[2]); // change to timestamp
				}
				elseif (strlen($dateParts[0]) <= 2 && strlen($dateParts[1]) <= 2 && strlen($dateParts[2]) == 4) { // xx.xx.xxxx
					$string = strtotime($dateParts[2].'-'.$dateParts[1].'-'.$dateParts[0]); // change to timestamp
				}
				else { // error
					$error = 1; // error
				}
			} else { // more than 3 parts - so error
				$error = 1; // error
			}
			$string = date('Y-m-d', $string); // For default: change 1234567 -> 1.1.1979
			if ($timestamp) $string = strtotime($string); // Change back 1.1.1979 -> 1234567
			if ($error) $string = ($default == 'now' ? time() : $default); // show default value

			return $string;
		}
	}

?>